Find top IT service companies in California through DesignRush. Our platform connects you with California IT support companies trusted by brands like McDonald's and Coca-Cola. With over 1M monthly visitors and Fortune 500 companies using our rankings, you can be confident in the quality of every agency listed. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.

Top IT Services Companies in California

Compare the leading IT services agencies in California, handpicked for their verified reviews, standout portfolios, and proven expertise, so you can confidently choose the right partner to scale your business.

Agency Name Why Hire Them Client Rating Hourly Rate Top Client or Case Study Top Industries
Goji Labs Trusted by global brands for UX and digital products. 5.0 ⭐ $149 Redesigned Elf on the Shelf website for immersive experience. Nonprofit, Healthcare, Fintech
Closeloop Technologies Award-winning, innovative tech solutions for complex needs. 4.9 ⭐ $25 Resolved database outage for Brex in two hours. Fintech, Healthcare, eCommerce
Mercury Development Over 2,500 projects delivered for top global brands. 4.9 ⭐ $50 Developed mobile apps for Burger King and Fitbit. Wellness & Fitness, Healthcare, Retail
Suffescom Solutions Inc Experts in mobile apps with global industry recognition. 5.0 ⭐ — Built ridesharing app for GoCar Malaysia. eCommerce, Healthcare, Fintech
AppMakers USA MIT, Stanford, UCLA engineers deliver on time and budget. 5.0 ⭐ — Developed mobile app for CVS Pharmacy. Retail, Education, Sports
Azumo Nearshore experts trusted by Meta, Zynga, United Health. 4.9 ⭐ $55 Developed chatbot app for Facebook events. AI, Fintech, Health Care
Koderspedia Custom mobile and web solutions with rapid delivery. 4.9 ⭐ — Web app for Gameloft Montreal exceeded expectations. eCommerce, Gaming, Real Estate
Aristek Systems AI and EdTech specialists with 22+ years experience. 4.8 ⭐ $50 Award-winning LMS for K-12 education market. Education, Health Care, Logistics
SDLC Corp Full-cycle digital solutions for startups to enterprises. 4.9 ⭐ $50 IoT supply chain project improved delivery for Freight Right. Logistics, eCommerce, Gaming
Trango Tech Holistic software and mobile solutions for global growth. 4.7 ⭐ — Built wellness app for Simple Habit company. Wellness & Fitness, eCommerce, Real Estate

We Have Researched the Best California IT Support Companies For You

6 Companies - Rankings updated: September 09, 2026

Each agency undergoes DesignRush evaluation for professional expertise and genuine client satisfaction to assist your search. Some featured placements are paid.

Expertise
Delivery & Takeaway
$10,000 - $25,000
Sort by: Sponsored
United States × California × Delivery & Takeaway × $10,000 - $25,000 × Clear Filters

  • AppMakers USA

    Verified Verified by the DesignRush team for authenticity and credibility.

    Top US Mobile & Web App Development Agency

    AppMakers USA is a Los Angeles-based firm building iOS, Android, and web apps, with AI integration and a 30-day MVP service. Its portfolio includes eCommerce, gaming, and education clients such as Walmart. Best for startups and SMBs needing a US-based mobile or web development partner...

    Top Services:

    • Mobile App Development
    • UI/UX Design
    • AI Development
    • Software Development
    • Web Design
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    83 Projects Listed

    AppMakers USA Services

    • Mobile App Development
    • UI/UX Design
    • AI Development
    • Software Development
    • Web Design
    • Staff Augmentation
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • CVS Pharmacy
    • Austin Ekeler (NFL Player)
    • ClassCalc
    • Number Hive
    • BookClub
    • Arcxis
    • Debate club
    • Bayut
    • Los Angeles Apparel
    • Sun Scooter
    Data sourced from the agency's DesignRush profile

    AppMakers USA Reviews & Testimonials

    • Yaakov Babani
      Yaakov Babani Manager at Growth Co.
      5.0 ★

      Small Business Review from Yaakov Babani

      I work in client partnerships and one of the hardest things is remembering the context behind every relationship when you have a lot of them going at once. AppMakers NY created a better way to do that. At one point there was a client that had mentioned the same frustration three times and because the notes were scattered around, that pattern was completely missed. That alone made the project worth it. The team helped develop something that would actually be useful during a busy week, not another system people forget to update. I liked working with them and would absolutely use them for future projects.

    • Eliana Lubofsky
      Eliana Lubofsky Teacher at SAM School
      5.0 ★

      Mobile App Development Review from Eliana Lubofsky

      AppMakers USA was a great experience! The team was professional, responsive, and easy to work with. They understood my ideas and helped turn them into a quality app. I'd definitely recommend AppMakers USA to anyone looking for reliable app development services.

    • Alexa Ginsberg
      Alexa Ginsberg Social Media Manager at Nanobébé
      5.0 ★

      Startup Review from Alexa Ginsberg

      What stood out most about working with AppMakers USA was how attentive and helpful the team was throughout the project. They listened to our feedback, kept us updated and were always available when we had questions. Everything was handled professionally and we felt confident that our project was in good hands. Were very pleased with the final outcome!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (69)
    4.9 4.9 (77)

  • M TECHUB LLC

    Verified Verified by the DesignRush team for authenticity and credibility.

    M TECHUB LLC, Where Ideas Become Scalable Digital Products

    M TECHUB LLC Leading Mobile App Development & Staff Augmentation Company in the USA...

    Top Services:

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • AI Development
    • Web Development
    • Show more
    Location
    Mountain View, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    20 Projects Listed

    M TECHUB LLC Services

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • AI Development
    • Web Development
    • eCommerce Development
    • UI/UX Design
    • Blockchain
    • Software Testing
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Victor
    • Alexandar
    • Oscar
    • Alex
    • Qleever
    • Erzat
    • Roxana
    • Amir
    • Abbas
    • Matt
    Data sourced from the agency's DesignRush profile

    M TECHUB LLC Reviews & Testimonials

    • Amber Irish
      Amber Irish President at Integrated IT Solutions
      5.0 ★

      Mobile App Development Review from Amber Irish

      M TECHUB LLC developed our logistics mobile app with real-time shipment tracking, driver management, route updates, delivery status, and an admin dashboard. Their team understood the operational needs of the logistics industry and delivered a reliable, easy-to-use solution. Communication was smooth, and we were very satisfied with the final product.

    • Olivia Smith
      Olivia Smith CEO at Musuvillc
      5.0 ★

      Mobile App Development Review from Olivia Smith

      We have worked with M TECHUB LLC as our B2B software development partner on multiple client projects. Their team has supported us with mobile app development, web applications, backend development, and custom software solutions. They are reliable, responsive, and flexible with changing project requirements. M TECHUB LLC has been a valuable development partner, and we highly recommend them for B2B software development and technical outsourcing.

    • Victor Lue-Yat
      Victor Lue-Yat CEO at DocuGreen
      5.0 ★

      Software Development Review from Victor Lue-Yat

      We have been working with M TECHUB since 2023 on software and application development projects, and they have become a valued technology partner to our company. Their team has consistently demonstrated strong technical capabilities, responsiveness, and a genuine commitment to delivering quality work. They communicate well, are receptive to feedback, and work collaboratively with us to solve challenges and continuously improve our applications. What I appreciate most is their reliability and willingness to work through complex requirements rather than simply completing assigned tasks. Over the years, we have developed a strong working relationship and considerable trust in their team. Based on our experience since 2023, I am very comfortable recommending M TECHUB to companies looking for a dependable software development partner.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.8 4.8 (8)

  • ZAAG SYSTEMS

    Ai fist design & development company

    ZAAG SYSTEMS delivers scalable web, mobile & AI solutions with sleek design, driving business growth for US startups...

    Top Services:

    • eCommerce Development
    • AI Development
    • Web Development
    • Software Development
    • Web Design
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    17 Projects Listed

    ZAAG SYSTEMS Services

    • eCommerce Development
    • AI Development
    • Web Development
    • Software Development
    • Web Design
    • Mobile App Development
    • Staff Augmentation
    • UI/UX Design
    • IT Services
    • Customer Support
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Goldenmark (USA)
    • New York City Pest control elimination (USA)
    • Ascend Technology Inc. (USA)
    • Inten-Ls (USA)
    • Mustafiz Foundation (USA)
    • Shore Teams (Neatherland)
    • Mangtas (Singapore)
    • CROSSMARKET (Germany)
    • Eigenart E.k (Germany)
    • KADAD (Quatar)
    Data sourced from the agency's DesignRush profile

    ZAAG SYSTEMS Reviews & Testimonials

    • Dr.Laine Powell
      Dr.Laine Powell Founder and Executive Director at Tech Sassy Girlz
      5.0 ★

      Mobile App Development Review from Dr.Laine Powell

      We hired ZAAG System Ltd to achieve several objectives, primarily to develop a cutting-edge mobile app for Tech Sassy Girlz. Our goals included enhancing user engagement, streamlining processes, and ultimately expanding our digital presence. ZAAG System Ltd demonstrated exceptional expertise in understanding our requirements and translating them into a comprehensive scope of work. Within just a week of project initiation, ZAAG System Ltd showcased tangible results, including increased user engagement metrics, such as longer session durations and higher retention rates. They consistently delivered milestones on time, adhering to the agreed-upon timeline without compromising on quality. Their team displayed a remarkable blend of technical proficiency, creativity, and dedication, resulting in a mobile app that exceeded our expectations. Overall, ZAAG System Ltd proved to be an invaluable partner in our journey to revolutionize digital education for young women. We wholeheartedly recommend ZAAG System Ltd to any organization seeking top-notch mobile app development services.

    • Robb Fahrion
      Robb Fahrion Partner and Co-Founder at Flying V Group Digital Marketing
      5.0 ★

      eCommerce Development Review from Robb Fahrion

      We were creating a product in the advertising technology environment. It was a product for publishers to improve their revenue by making a dynamic inventory on their side and getting more income out of their advertising. We needed help with the recruitment of an outsourced, part-time frontend developer with broad experience and availability.

    • Isabella Susan
      Isabella Susan Makeup Artist at Glam
      5.0 ★

      Web Design Review from Isabella Susan

      From start to finish, our team at Zaag Systems Ltd., led by Tony, Don, and Mike, was a pleasure to work with. Their approach to web design and development is both collaborative and consultative. They took the time to understand our business needs and goals and provided expert guidance on the best strategies.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.6 4.6 (3)
    4.7 4.7 (25)

  • Xicom

    Transforming businesses with custom AI development

    Xicom has been building software and mobile apps that moves businesses forward. Over 20+ years, we have grown into a trusted AI development company, delivering 1800+ projects to 750+ clients across 50+ countries, including startups, SMBs, and enterprises...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed

    Xicom Services

    • AI Development
    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • Web Design
    • IT Services
    • Blockchain
    • Wearables
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • JobMinglr
    • TodayFit
    • KIA
    • Disney
    • Adidas
    • GoGmGO
    • Tap Retail
    • IELTS
    • FlirtFlex
    Data sourced from the agency's DesignRush profile

    Xicom Reviews & Testimonials

    • Ali Rashid Developer at Net Insight
      5.0 ★

      Software Development Review from Ali Rashid

      Xicom has been a strong partner for the last five years that we have hired them for varied projects in iPhone app development and Android app development as well. The Xicom team is technically professional and knows about the current trends in the mobile app development market.

    • Jasper.B Stewart
      Jasper.B Stewart Review from Google
      5.0 ★

      Jasper.B Stewart's Review Sourced from Google

      I started with just an idea and no technical background, but the team made the entire process smooth and easy to understand their expert team guided me through every stage, handled the planning and billing clearly and professionally. The app they developd for my business now helps us manage online customer bookings efficiently and saves our team hours every week. It’s been a great experience working with Xicom.

    • Roger T. Oliver
      Roger T. Oliver Review from Google
      5.0 ★

      Roger T. Oliver's Review Sourced from Google

      partnering with Xicom for AI development services was an excellent experience. Their team demonstrated strong technical expertise, transparent communication, and a clear understanding of our business goals from the very beginning, they quickly adapted to our evolving requirements and delivered a scalable AI solution on time and within budget. especially appreciated their honest recommendations, which helped us focus on the features that truly added value. highly recommended for reliable and future-ready AI development solutions.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.3 4.3 (1)
    3.7 3.7 (3)

  • RipenApps Technologies

    Ripening Ideas Into Apps

    RipenApps Technologies is the leading mobile app development company which is headquartered in USA and successfully running in other locating countries including India, UAE, Germany...

    Top Services:

    • Mobile App Development
    • eCommerce Development
    • Web Development
    • Web Design
    • UI/UX Design
    • Show more
    Location
    Ontario, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    21 Projects Listed

    RipenApps Technologies Services

    • Mobile App Development
    • eCommerce Development
    • Web Development
    • Web Design
    • UI/UX Design
    • IoT
    • Wearables
    • CRM Consulting
    • ERP Consulting
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • newlight
    • CoffeeKarma
    • ufp
    • poultrify
    • ITR
    • Keeva
    • Menos
    • GoGreen
    • Merci
    Data sourced from the agency's DesignRush profile

    RipenApps Technologies Reviews & Testimonials

    • Saras Bisht
      Saras Bisht Review from Google
      5.0 ★

      Saras Bisht's Review Sourced from Google

      I have been working at RipenApps Technologies for the past two months, and it's been a great experience. The work environment is positive, and the team is really supportive. I'm learning a lot, and the company values innovation and quality. Looking forward to growing here !

    • AVINASH RANA
      AVINASH RANA Review from Google
      5.0 ★

      AVINASH RANA's Review Sourced from Google

      Working at RipenApps Technologies has been an enriching experience. The company fosters a collaborative work environment, encourages innovation, and provides ample opportunities for professional growth. The leadership team is supportive, and the work culture promotes learning and development. Colleagues are talented and always ready to help, making it a great place to build a rewarding career. Proud to be a part of this dynamic organization!

    • Pavan Pathak
      Pavan Pathak Review from Google
      5.0 ★

      Pavan Pathak's Review Sourced from Google

      RipenApps is the best platform to transform your ideas into digital solutions. and It also cares about its employees. I have been working with RipenApps for almost 9 months now and I have learned many new things in development and IT as well as beyond development. My experience at RipenApps as an employee, as a person, has been great. many thanks to RipenApps for everything I have experienced so far.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.6 4.6 (193)

  • Appther

    Transforms Digital Idea Into Reality

    Appther is a software and mobile app development company creating intelligent, scalable, and user-friendly digital solutions powered by innovation and AI...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • Design Services
    • Product Design
    • Show more
    Location
    Signal Hill, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $22/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed

    Appther Services

    • Mobile App Development
    • Software Development
    • AI Development
    • Design Services
    • Product Design
    • Web Design
    • Web Development
    • Staff Augmentation
    • IT Services
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Joyscore
    • Mybob Team
    • Wave
    • Locasto
    Data sourced from the agency's DesignRush profile

    Appther Reviews & Testimonials

    • Sharma Pk
      Sharma Pk Review from Google
      4.0 ★

      Sharma Pk's Review Sourced from Google

      After searching a lot for a good mobile app development organization, we finally landed on Appther. They provided us with all the technical solutions and resources for our organization with minimal hassle. The products delivered by Appther feature best-in-class performance and an attractive design. The mobile application was smooth and bug-free and allowed us to connect with a big pool of clients. The website was also delivered with full precision and on time. The performance and products delivered by Appther are admirable, they showed the finest class of professionalism and expertise throughout the entire process. Pushpender Kumar General Manager IT A.B Sugars Ltd(Wave Group)

    • Akshay Choudhary
      Akshay Choudhary Review from Google
      5.0 ★

      Akshay Choudhary's Review Sourced from Google

      One of the fastest-growing app development companies in Noida. The work environment is very good. They also initiate some fun activities which makes working with the company more fun and easy.

    • Akanksha Pathak
      Akanksha Pathak Review from Google
      5.0 ★

      Akanksha Pathak's Review Sourced from Google

      It is a company that will help you boost your career. I have been working with Appther for quite a while will be going to be a part of this family for a long time. The work culture is friendly and superiors are nothing supportive. Proud to be a part of the Appther family!!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.7 4.7 (23)

IT Services Companies in California by City

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Frequently Asked Questions

What services do IT services companies in California provide?

IT services companies in California provide technology solutions that help businesses run efficiently, stay secure, and scale operations. Their services typically include: 

How do IT services companies in California help businesses improve efficiency and security?

IT services companies in California improve efficiency and security by automating routine tasks, maintaining cloud infrastructure, and ensuring fast, reliable access to business tools. For security, they set up firewalls, encryption, and multi-factor authentication to block unauthorized access.  

They also monitor networks 24/7, detect vulnerabilities early, and provide regular updates and backups to prevent downtime or data loss. This allows businesses to operate smoothly and focus on growth while staying protected from cyber risks. 

How much do IT services cost in California?

IT services in California typically cost $80 to $200 per user per month, depending on service scope and company size.  

  • Basic packages cover help desk support, monitoring, and maintenance 
  • Mid-range plans include security management, cloud services, and data backups 
  • Higher-end packages add advanced cybersecurity, compliance support, and strategic IT consulting 

Project-based work, like migrations or infrastructure upgrades, is usually billed separately at hourly rates. 

What certifications should California IT support companies have?

California IT support companies should hold certifications that prove their technical skill and security standards. Common and respected ones include: 

  • CompTIA A+ or Network+
  • Microsoft Certified Solutions Expert (MCSE)
  • Cisco Certified Network Associate (CCNA)
  • AWS or Google Cloud certifications
  • Certified Information Systems Security Professional (CISSP)
  • ITIL Certification

How do IT services companies in California ensure data protection and compliance with state and federal laws?

IT services companies in California ensure data protection and compliance by combining strict security measures with legal standards. They use encryption, firewalls, and access controls to secure sensitive information, along with regular backups and disaster recovery systems.  

To meet regulations like CCPA, HIPAA, and GDPR, they conduct compliance audits, maintain data processing policies, and train staff on privacy rules. They also monitor systems for breaches, keep detailed logs for accountability, and update protocols as laws or threats evolve, ensuring businesses stay secure and compliant. 

What kind of ongoing support do California IT support companies offer after implementation?

California IT support companies provide ongoing services to keep systems secure, up to date, and running smoothly after implementation. Support usually includes 24/7 monitoring, help desk assistance, and regular maintenance to prevent downtime.  

They handle software updates, security patches, and system backups, and monitor networks for performance or security issues. Many also offer user training, hardware upgrades, and scalability planning so businesses can adapt as they grow. 

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